Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September brings a minor shift in the average high-temperature, adjusting from a pleasant 72.7°F (22.6°C) in August to an enjoyable 66.6°F (19.2°C). Nighttime temperature dips to a mean of 53.4°F (11.9°C) during September.Humidity
The average relative humidity in September is 81%.Rainfall
In September, the rain falls for 10.1 days. Throughout September, 1.61" (41mm) of precipitation is accumulated. In Round Pond, during the entire year, the rain falls for 144.1 days and collects up to 29.29" (744mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Round Pond, the average length of the day in September is 12h and 30min.On the first day of September, sunrise is at 6:02 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 6:20 pm EDT.
Sunshine
In Round Pond, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September in Round Pond, Maine, is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September in Round Pond?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Round Pond, ME
- Average high temperature in September: 66.6°F
The warmest month (with the highest average high temperature) is August (72.7°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in September: 53.4°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in September
Round Pond, ME
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Round Pond, ME
- Average wind speed in September: 7.9mph
The windiest month (with the highest average wind speed) is January (11.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in September
Round Pond, ME
- Average humidity in September: 81%
The months with the highest relative humidity are June and July (83%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
Round Pond, ME
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is July (1.57").
Average rainfall days in September
Round Pond, ME
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in September
Round Pond, ME
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.37").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Round Pond, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Round Pond, ME
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days in September
Round Pond, ME
- Average sunshine days in September: 18.3 days
The month with the most sunshine days is September (18.3 days).
The month with the least sunshine days is April (11.4 days).
Average UV index in September
Round Pond, ME
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Round Pond, ME
- Average cloud cover in September: 33
The months with the most cloud cover are February, March, April and December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Round Pond, ME
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Round Pond, Maine, USA
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